Chair frame



FIG. 1 is a side elevational view;

FIG. 2 is a front elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a side elevational view of a modified embodiment of the invention;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a rear elevational view thereof. 

The ornamental design for a chair frame, as shown and described. 